an exo fanfic with the "kaisoo" pairing (kai (kim jongin) and do kyungsoo) written by changdictator on livejournal. it's arguably the most popular piece of fanfiction in the exo fandom.
anterograde tomorrow is about a young man with amnesia, do kyungsoo, and the writer kim jongin (kai), and how they fell in love and what happened afterwards.

this fic is popular because of its storyline, writing style, and heart-wrenching and tear-inducing scenes.